Americans with disabilities are at a breaking point. Are politicians listening?

USA TODAY - For more and to sign up click here Megan Burke and Rachel Barkley, opinion contributors The disability community has reached its tipping point, and our representatives should pay attention because they could be the most undervalued voting bloc in our country this election. One in 4 adults in the United States are living with a disability — 61 million people — and including their caretakers moves that…